The silicon and cling film idea is a good idea that I will use for the top.
However, I don't want to have to take the whole box apart the next time I replace a part in the cistern so I really need to have the front panel (behind the loo) removable.
I just can't visualise the boxing in...
This sounds like a great idea, but can you explain the "1/4" short on vertical length" and how is the boxing mounted to these slotted battons?
do you have any pictures of the box that goes onto the battons?
I am boxing in a concealed cistern with back to wall pan, so will use the slotting...